Pager

Claim 1

A pager comprising: a radio section for selectively receiving one of n radio frequency signals (n being an integer not smaller than 2) whose frequencies are different from each other, each radio frequency signal being modulated by a signal comprising a plurality of paging signal groups each of which is made up of at least a frame sync which is the same as frame sync signals of the other groups, a group designation signal which differs from group designation signals of the other groups, and a plurality of paging signals; a channel control section for controlling a receive frequency assigned to said radio section; a timing generator section for performing a control such that only an own paging signal group with which the pager is associated is received; and a synchronization control section for controlling a synchronization condition of the pager with the own paging signal group; said timing generator section operating in a first intermittent reception mode when a power source of the pager is turned on or when the pager is non-synchronous to the own paging signal group and in a second intermittent reception mode when the paper is synchronous to the own paging signal group; during the first intermittent reception mode operation the channel control section sequentially switching the receive frequency until a frame sync signal has been detected, the synchronization control section tuning the pager to the receive frequency on which the frame sync signal has been detected; when the pager has been tuned to the own group, the channel control section locking the receive frequency at a particular frequency which has occurred when the pager has been tuned.